Lock



4Patented Muay-2l, 19629. I I p UNITED STATES. PATENT OFFICE.

nnwAnnN. JAOOBI, or MILWAUKEE, WIscOnsIN,`ssIeI\Ion To Immos ANnsrnAT TON conronA'rION, OF MILWAUKEE, WISCONSIN, A oonronArIon or DELAWARE l Loox. y

Appiicatien inea september 2o, 1928. seriai No. $07,188.

This invention relates to certain new and inder mounting head which is centrally bored i useful improvements .in lock structures and from the rear, as at 6, and has. its outer end 7 has as an object the provision of an improved provided lwith a smaller bore 8 concentric ,remmer for the 100k bolt actuating Spring with the bore 6. Alock'cylinderQis rotatable whereby the saine serves to'secure the cylinder in tlie bore 6 and has a vreduced outer end porl 60 p mounting headin its support. tion 10 which receives'a protecting cap 11 ro- A more Specific Object of this invention retatable in the reduced bore 6, the cap 11 havsides .in 'the vprovision of a lock structure ing an annular flange 12 on its Outer periph@ wherein a 'Spring' retainer for the locking eral edge abutting a shoulder 13 at the junc- 10 bolt; actuating spring yieldably projects betion of the bores Gand 8 to prevent outward e5 yond the circumference ofthe mounting head movement of the Cylinder. A;.O engage in a, recess in the door 0r other The Cylinder 1S provided Wltl1 8,'pl11Ia.1ity

f7/Support in which the 100k is t0 be mounted of spring pressed tumblers 14 which are nor-v to thus secure the lock assembly in position. many Spring urged IIO. lengtudinl 510125 l5 15 Another Object of this invention resides in in the WauS 0f the meunting head bore to re` 70 Y the provision of an improved lock structure. ,Strain tlleeylnderaganst rotation, the tumhaving a guide plunger which materially Sim-I blers being retractable Within the ciroumferplifies the installation of the lock and fur- I eIlCe 0f the Cylinder upon the insertion'of a' ther serves to guide the longitudinal move- IDI-Opel key 16111 the usual key Opening 17 exment thereof as it is slid in and out tov pertended therethrough.`

form its locking function. Rotation of the cylinder by thev key 16 N Vith the above .and other Objects in view .operates to retract or extend the locking bolt which will appear as the description proceeds, 18 beyond the periphery 0f lthe 'mounting my invention resides in the novel construehead, the locking bolt preferably consisting tion, combination and arrangement of parts of a stamping having its'locking end slidable 80 i substantially asn hereinafter described and 111 e IeCeSS 19 in Jelle Wall 0f the head in commore particularly `defined bythe appended muDlCatOIl With the rea-T end. 0f the bOle 6..l claims, it being `understood than vSuch' A shoulder 2 0 abuts the walls of the bore 6 changes in the precise' embodiment of the to limit Outward movement of the bolt under v hereindiselosed invention may be made as" the influence of an' expansle Springel con- 85- come within the scope ofthe claims. Y n'ed between two spaced guide parts 22 on In the accompanying drawings, I have the inner end of the locking bolt with one end illustrated one'eomplete example of the physengaglng e 'tit 0r enlargement 23 formed on ical embodiment of my invention constructed the bOlt and its other end engaged in a re-` 3,5 according to the best mode I have S0 far demovable retainer 24 secured in a recess 25 in 90 vised for the practical application ofthe printhe Wall 0f the bere 6 delnetreally opposite cip'les thereof, and in which: 0f the recess 19. l

Figure lis a side elevational view,. with The inner end of the cylinder has a subparts broken away and in section, 0f a 100k stantally V or segmental 'Shaped lextensin v 40 embodying my invention; Y 2 6 from one end of which a cam 27'projects 95 Figure 2 is an end elevational view of the t0 engage a shoulder 28 on. the inner end of lock assembly; 'l one of the guide parts 22 so that rotation of Figure 3 is a fragmentary view of the rearthe cylinder in a counterclockwise direction end of the lock with the mounting head in With respect to Figure 2, causes cam 27 to 5 section and the cylinderlockin'gv bolt in side bear against the Sh0u1der28 and retract the 10o elevation; n bolt against its spring 21, the guide part car- Figure 4 is a perspective view of the 'inner rying the shoulder 28 working .in the ont' end of the lock cylinder, locking bolt and away portion 29 -of the lock cylinder which washer member, and; defines the segmental extension 26 and' the Figure 5 is a fragmentary view similar to other working on the outer face of the VA 10 Figure 3 illustrating the manner of assem- .or segmentalfshaped;eXteIlSOn. y v bling or disassembling the lock.' To prevent the insertion of an instrument In the accompanying drawings, in which through the key openingI 17 to retract the like numerals designate like parts throughlocking bolt against its spring 21, a washer out the severa-l views, 5 represents a lockv cyl- 30 is .positioned between the cylinder and 110 locking bolt. The .halves of the Washer 30 are on different planes sothat one half 31 engages the extension 26 and the other-half 32 engages the cut away portion 29 thus effectively closing the key opening at its rear, a recess or cut away portion 33 in the Washer member permitting the projection therethrough of the eccentric pin 27. y In assembling-the lock, the lcylinder is engaged in the bore of the mounting head from the rear, the Washer member 30 is then positioned to engage the rear end thereof and the locking bolt unit is passed through an irregular shaped opening 34 in the Wall of the mounting head opposite opening 19 and in "Wregister with. recess 25. The spring 21 and retainer 24 are then secured in position in the manner illustrated in Figure 5, the Well l or cup 35'of the retainer projecting through the opening 34 beyond the periphery of the mounting head, for the reason later described. In assembling or disassembling the lock, a screw driver or other tool 36 is employed in the manner illustrated in Figure 5, disassembling. being accomplished by prying the well 35 of the retainer out of the open s ing 34, as Will be readily apparent.

The retainer 24 may be either milled from stock material, as illustrated in Figures l and 4, or stamped from bendablJ sheet metal, as illustrated in Figures 3 and- 5. In either case, the top of the retainer has 'a flange 3 which fits Within the recess 25. Y

The d'oor or other support 38 in which the A lock unit is to be secured is bored, as at 39, and

has a recess 40 adapted to register With the cupv 35 of the retainer `when the lock is in position so that the cup 35 projecting beyond the mounting head engages therein to firmly 40 secure the lock assembly in place. As is cus tqmary in `structures of this character, the means securing the lock assembly in position is inaccessible as long as the device being locked is locked. In the case of an automobile or other door, the means securing the lock assembly. inposition is accessible from the outer edge of the door, Which is protected when the door is closed, but when the door 'is open, a suitable instrument may be inserted through the recess 40 to free th'e lock cylinder and thus permit its ready removal for purpose of replacement or repair.

In structures Where the lock is mounted for axial or longitudinal movement for the performance of its locking function, the plunger or cup member 2li functions. as a guide for this movement in addition to retaining the same in position, as Will be readily obvious, in which case the opening 40 is elongated to a depth equal to the movement of the lock in operation. The spring plunger 24 further greatly facilitates the mounting of the lock in its operative position as it is merely necessary to depress the same to With in the circumference ofthe mounting head 5 ly yieldably urging the locking bolt beyond the circumference of the mounting head, a retainer for said spring normally project ingvbeyond the circumference of the mounting head, cooperating means between the lock cylinder and locking bolt whereby rotation of the cylinder retracts the bolt against its spring, and a support adapted to receive the' mounting head and having a recess'in which said' spring retainer extends to secure the lock therein. l

2. In a lock including a lock cylinder mounting head, a .lock cylinder rotatably mounted in the head, a locking bolt retractable by the actuation of the lock cylinder and a spring normally' urging the locking bolt to one position, a retainer for the spring and normally urged thereby to projectlbeyond the circumference of the mounting head and being depressibleV Within the circumference of the head. A

3. In a lock including. a lock cylinder mounting head, a lock cylinder rotatably mounted in the head, a locking bolt retractable by the actuation of. the lock cylinder and a spring normally urging the locking -bolt in one position, a retainer for the sprmg and normally urged thereby to project beyond the circumference of the mounting head and being depressible Within the circumference of the head, and means limiting the movement of the, retainer beyond the circumference of the head.

4. A lock assembly of the character de scribed, comprising -a mounting head having a central bore and a slot traversing thebore, a lock cylinder rotatable inthe bore, a lockiing bolt slidably mounted in the slot andno adapted to be inserted therein from one end, means limiting the movement of the locking bolt beyond the other end of theslot, an eX pansi'le spring engageable with the locking bolt and normally urging the same outward! 115 ly of the slots other end, a. retainer engage: V able with' the other end of the spring and readily detachably positioned to retain the spring in operative position, a projection 'carried bythe retainer and'yieldably extended beyond the periphery of the mounting head for engagement in a recess in a support in which the lock assembly is mounted, and means whereby rotation of the lock cylinder actuates the locking bolt against its spring.

5. In a device of the character described, a lock structure mounted for movement in a support, a spring plunger yieldably urged to extend beyond the circumference of the lock structure to engage in a guide opening movement in the performance of the locking function of the. look, a guide carried by the support, a lock cylinder within the mounting head, a locking bolt operable by the cylinder, spring means normally tending to operate the locking bolt in opposition to the cylinder, said cylinder being key controlled to release the mounting head. for movement in its support, anda retaining plunger for said spring means and yieldablyurged thereby to extend beyond the circumference of the mounting head and engage' thesupport guide to' control the movement of the mounting head therein.

7. In a device ofthe character described, a lock structure including a mounting mem- `ber movable in a support, a lock cylinder 'mounted in the mounting member and a looking member movable transversely in a mounting member opening to engage the-support andrestrain movement of the lock structure therein, said locking memberl being inserted iny the mounting member opening through one end thereof, springy means yieldably urging said locking member to oneI position, a retaining member for the spring means substantially closing the endl of said opening through Whichlthe lock-ing member is inserted, and means carried bythe retaining member and yieldably projected beyond the periphery of the mounting member to engage a guide opening in the support.

In testimony whereof I have hereunto affixed my signature. l

- EDWARD N. JACOBI. 

